The Official BBC Teaser Promo Video for Doctor Who: The Day of the Doctor [VIDEO]

As promised, the BBC has made available the official teaser promo "trailer" for Doctor Who: The Day of the Doctor now. The previous "leaked" version had Spanish subtitles, this does not and it is directly from the BBC. It features Matt Smith, David Tennant, John Hurt, and some other familiar faces. [Warning: Possible "spoilers" depending on your perspective.]